Manufacture of wall-paper



H. C. JARVIS.

MANUFACTURE OF WALL PAPER.

APPLICATION FILED NOV. 29, 1920.

1 87,724, Patented Aug. 16, 1921.

INVE NTDR UNITED STATES PATENT OFFICE.

MANUFACTURE OF WALL-PAPER.

Specification of Letters Patent.

Patented Aug. 16', 1921.

Application filed November 29, 1920. Serial No. 426,985.

T 0 all whom it may concern:

Be it known that I, Hnnnnn'r C. JARVIS, of the city of Toronto, in thecounty of York, Province of Ontario, Canada, a subject of the King ofGreat Britain, have invented certain new and useful Improvements in theManufacture of Wall-Paper, of which the following is a specification.

In the present invention my object is to produce a wall paper which ismore econoinical to manufacture than present papers of the same qualityand which involves less trouble in hanging.

The process of manufacture is illustrated in the accompanying drawingsin which Figure 1 shows a part of a strip of wall paper and a printingroller in the act of printing the pattern on the paper; and

Fig. 2 a plan view of a modified form of a strip of wall paper producedin accordance with my invention.

The method generally followed in printing patterned wall papers may bebriefly described as follows. The printing rolls are made so that oneside of the imprint will match the other side. It being impossible,however, to guide the strip of paper being printed in exact alinementwith the edges of the pattern on the printing rollers, the paper used isalways wider than the pattern and a selvage is left along each edge ofthe strip of wall paper. When the paper is being hung, one or both ofthese selvages are cut off before the paper is hung. This operationrequires considerable skill and takes up time, and, further, theselvages are wasted material.

I aim to make it possible to print wall papers either without selvagesor with only one selvage, and this I effect in the following manner.Instead of making the printing surface of the printing rollers of theexact width of one or more repeats of the pattern, I extend the patternabout one-quarter inch at each end of the roller, these extensions beingpartial repeats of the pattern to be printed by the roller (see Fig. 1).

In printing wall papers without any selvage, I use a paper of the exactwidth of one or more transverse repeats of the pattern and thereforeabout one-half inch narrower than the printing surface of the roller.Now, as a strip of paper can be guided through the printing machine towithin one-quarter inch of exact alinement with the printing rollers forlengths up to many yards, and as the paper is the exact width of one ormore horizontal repeats of the pattern, the pattern is printed so thatone side of the paper will match the other exactly, one margin beingexactly complementary to the other in adjacent strips up to the lengthsordinarily cut.

In printing the wall paper with one selvage only,

I use paper about one-half inch wider than the horizontal repeat of thepattern (see Fig. 2) and guide the paper through the printing machine sothat the edge of the printing surface of the roller will overlap oneedge of the paper about one-quarter inch more or less, thus leaving aselvage along the other edge.

When hanging paper with one selvage, the edge without selvage may belaid over the selvage of the last hung strip and extended over theprinted portion to the line where the pattern exactly matches, thus aperfect matching of the design may be obtained, the selvage beingentirely covered.

I'Vith paper thus printed a great saving of material is effected as wellas a great saving of time and labor when the paper is hung. A furtheradvantage is that as the pattern is printed by a printing surface whichoverlaps the edge of the paper, the printing colors will soak in to theedge of the paper and stain this edge, which otherwise show white. Thisentirely prevents any white edges showing when the paper is hung, whichis very apt to happen, particularly with dark papers printed in theordinary manner with selvpfge edges, which are always afterward cut 0 Itis advisable, of course, with papers printed without selvages to cap therolls to prevent damage to the edge of the pattern. Such capping may beeffectively performed by means of the machine shown and described in myUnited States Patent No. 1355228 of October 12th, 1920.

IVhat I claim as my invention is 1. A process of printing a strip ofwall paper with a repeat pattern which consists in employing a printingroller formed with a repeat pattern and having its printing surfacewider than the exposed width of the strip of paper when hung andprinting said strip with the printing surface of the roller overlappingone edge of the strip, the paper hung and printing said strip with theprintbeing of a width not less than a suitable reing surface of theroller overlapping both 10 peat of the pattern. edges of the strip,thepaper being of a width 2. A processiof printing a strip of wallexactly'equal to a suitable repeat of the 5 paper which consists inemploying a pr1ntpattern. 7

ing roller formed with a repeat pattern and Signed at Toronto, Canada,this 20th day having 1ts printing surface wider than the of November,1920. exposed width of the strip of paper when HERBERT 0. JARVIS.

